And john graves



(No Model.)

G. VAN WAGENEN & J. GRAVES.

PROCESS OF MAKING PIPE COUPLING FLANGES. No. 416,815. g V Patented Dem-10, 1889.

K Wm

7[Mills 71135 ATTORNEY UNITED STATES PATENT OFFICE.

GEORGE VAN WAGENENAND J OHN GRAVES, OF NEXV YORK, N. Y.

PROCESS OF MAKING PIPE-COUPLING FLANGES.

SPECIFICATION forming part of Letters Patent No. 416,815, dated December 10, 1889.

Application filed A t 14, 1889. $erial No. 320,715. (No model.)

To all whom it may concermv Be it known that we, GEORGE VAN \VAG- ENEN and JOHN GRAVES, citizens of the United States, and residents of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Processes of and Apparatus for Manufacturing Flanges of Wrought Metal, of which 'the following is a specification.

The invention relates to an improved process of and apparatus for the manufacture of flanges for pipe-couplings and otherpurposes' ure displacing the metal laterally from said anvil into the matrix, the metal completely filling the latter, leaving simply a thin film over the surface of the anvil, which film, upon the flange being removed from the die, may be readily broken away. v

The process and apparatus will be more fully understood from the description hereinafter presented, reference being had to the accompanying drawings, in which- Figure 1 represents a central vertical longitudinal section through the die, the disk of wrought metal placed thereon, and the means of applying pressure, and illustrating the first step in the process of the manufacture; Fig. 2, alike View of same, showing the condition of the metal after pressure has been applied and the flange formed; Fig. 3, a plan view of the die; Fig. 4, a view of the flange as taken from the die illustrated in Fig. 2 prior to breaking off the thin film which covered the anvil portion of the die, the figure showing the lower side of the metal flange; and Fig.'5,aperspective view of the disk of wrought metal which is transformed into the flange by means of the process and apparatus illustrated in the foregoing figures of the drawings.

A designates the die, having the central ancles the anvil portion B and is in the outline of the flange to be produced. The anvil portion B extends centrally upward from the lower portion of the matrix C, and its upper surface is on a level with the upper edges of the die.

The means for applying pressure is designated by the letter D, and in the present instance consists of a block of metal having a plain lower surface, as illustrated in the drawings.

.wrought metal, and in the use of the die the disk or blank E, of wrought metal, is placed centrally upon the anvil portion B of the die A and pressure applied thereon,the effect being that the wrought metal will be displaced laterally over the circular edges of theanvil B and completely fill the matrix 0, beingthereby transformed from the disk into a flange, the'hub portion of the flange being formed by the vertical walls of the anvil B. After the disk E has been formed into the flange by The flanges are formed from disks E, of

vil portion B and the matrix C, which encir- 1 means of pressure forcing the metal into the to the disk (0 and extending upward through apertures in the die to the lower surface of the matrix (J. The disk or is placed within a recess formed in the die A, as shown, and said disk is slotted to loosely receive the inner end of the lever f, which is pivoted at b in the slot 0 and has a head cl at its outer end. After the flange has been formed and the hammer or upper section of the die D elevated, a light blow on the head (1 will cause the inner end of the lever fto force the disk a and pins eupwardand eject the flange from the matrix.

The application of pressure to the disk E has the eifect of forcing all of the metal from the anvil B into the matrix C, with the exception of the thin film, which upon the completion of the manufacture will cover the upper end of the anvil B, as illustrated in Fig. 2.

It will be noted upon observing Fig. 1 that the disk of Wrought metal E is less indianleter than the unatrix C, and thatthe quantity of metal in the disk E is sutficient upon being displaced from the anvil B to completely fill the matrix.

The apparatus andprocess which have been madethe subject of this application will be readily understood without a further detailed explanation, and so far as is, known they are applied by us to the manufacture of what we consider to be a new commercial product namely, wrought-metal flanges for use as pipecouplings and other purposes.

We believe it to be impossible at the present date to purchase wrought-1n etal flanges in the market overt, and it is our purpose to create by means of the present invention a new field of industry. 1

- lV-rought -metal flanges possess many adxantages both tothemanufacturer and user.

They may byreason of the present invention be manufactured more cheaply than castinetal flangesand when. manufactured possess greater. stren gth and durability than cast flanges.

:Whatwe claim as ourinventiomand desire to secure by Letters Patent, is

1. The die A for the manufacture of wroughtmetalflanges, said die having the centralanvilportion-B and the encircling matrix Cin the contour of the flange, the matrix being pe ab ve-an r oun d. by an in losinbwall and recessedto formthe hub of thezflange around the base of the u pwardly-prejecting anvil portion B, combined with means, substantially asdescribed, for applyin g pressu re, substantially as set forth.

2. The method hereinbefore described of manufacturing flanges, consisting in forming a disk or blank of wrought metal, placing said disk or blank centrally upon an anvil located at the center of a matrix of proper shape to form the flange and having an annular depression surrounding said anvil to form the flange proper, and then applying pressure upon said disk or blank to force it into said matrix, and the depression thereof effecting the displacement of the metal over the edges of the anvil and completely filling the matrix and its annular depression,substantially as set forth.

.The die A for the manufacture of wroughtmetal flanges, said die having the matrix C in the contour ofthe flange and the centralnp- 

